Built-in lighting apparatus



FIG. 1 is a perspective view of a built-in lighting apparatus in accordance with my new design;

FIG. 2 is a top view thereof;

FIG. 3 is a perspective view of the built-in lighting apparatus of FIG. 1, installed in a ceiling or wall;

FIG. 4 is a front view thereof, rear, left side and right side views being identical; and,

FIG. 5 is a bottom view thereof. 

The ornamental design for a built-in lighting apparatus, as shown and described. 